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Question
The graph of 3x + 2y = 6 meets the x=axis at point P and the y-axis at point Q. Use the graphical method to find the co-ordinates of points P and Q.
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Solution
To draw the graph of 3x + 2y = 6 follows the steps:
First, prepare a table as below:
| X | - 2 | 0 | 2 |
| Y | 6 | 3 | 0 |
Now sketch the graph as shown:
From the graph it can verify that the line intersects the x-axis at (2,0) and y at (0,3), therefore the coordinates of P(x-axis) and Q(y-axis) are (2,0) and (0,3) respectively.
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